Wringer



July 27, 1937. f w. l..rv KAUFFMAN, 2D 21,087,977

WRINGER n v Filed may 11, 19a- 2 sheets-sheet 2 l{JINV NTOR.

ATTORNEYS.

` /1y in section with the Patented l July 27, 1937 uiu'rlezo ,STATES i nWRINGER l Walter L. Kauiinan, II, Erie, Pa., assignor to LovellManufacturing Company, Erie, la., a

corporation of Pennsylvania Applicationv May 11, 19313,Serial No.670,461 f 14 claims. (ci. ca -s2) 10 claims.

A preferred embodiment of the invention is illustrated in theaccompanying drawings as fol- 1oWs; j. y.

Fig. 1 shows a front elevation of a Wringer, partrelease device in placethereon.

Fig; 2 is a. bottom view ofthe top 4bar removed. v Fig..v 3 a section onthe lines 3-3 in Figs. 1 Vand2.v y@ t Fig.' 4 va section on the lines,4`4 in Figs'. 1 and?. a i Fig.' 5 a section on the line 5 5 in Fig. 7.

Fig. 6 an elevation of the plate for securing the operating bar.' 1 25Fig. 7 an enlarged 'front the Wringer.

Fig. 8 a detached view oifa trip plate. Fig. 9a front elevation oftheupper partof Vav wringer with a modication.

Fig. 10 a section on the line Ill-I0 in Fig. 1./ Fig. 11afrontele'vation of a lfurther modification.

elevation. of the top of Fig. 13 an elevation,"partly 'in section,showing aTurthermodification.' y The frame has a base I and'sid'e'stilesl 2.' The side stiles are hollow. Rolls 3 and l have,shafts 5 and 6 and these'shafts are journaled in'bearing t turned earsI1 through which a rod I8 extends, 5

` `the rod being secured in the sidey walls of the top bar. The top I9of the latch plate has an extenv`son12l) which engages the tripextenslon'2la,` of 55 {atrip plate 2|. f l n Fig. 12 an end elevationofthe wrlnger shown The trip plate has extending ears 22 and theseextend throughperforations 23 in brackets 24, the bracketsvbeingsecuredto the under-side ofthe top bar. These bracketsl-haveang'es 25. Thelower portion ofthe flange forms a stop for the extensionand'thuslocates the'latches inr position to be engagedby the trip plate.The ears I1 haveiextensions ,Z3-which engage the upper edge of the stileand thusswing the latches soas to effect the engagementof the hooks asthe top bar is set in place on the top of the frame. Y

` The trip plate has openings 2l into whichproject pivot lugs2lat4YCross bars 28 are slidingly mounted in p'erforations 28a in #the sidewalls of "the top bar. Thesecross` bars extend-through theperforations'21 and in turn have perforations ris then moved into vplaceand secured.

' The ends of the cross bars 28 are notchedand extend through'openings30 in securing plates 30a.

'I'he ends of the cross bars are headed over at 3 I- on the securingplates; as shown in Fig. 7` andthe operating bars32 have their edgesbeaded over, thus nishing Ythese'oper'ating bars and securing them onthe securing plates 30a; Springs v33 are secured around the cross vbars28 and engage the sidewallsof the top bar and thus yieldingly press thetrip plate toits central position.

In operation when the emergency arises'the operator strikes either oftheoperating bars 32. These bars through' the cross bars communicatemovement to the trip 'plate 2|. `AThis swings the extensions 21a offofthe trip extensions 20 of the" latches I6. Immediatelythese latchesswing up suiilciently to"release'j the hooks I4r from the notches I3 andthe*l top bar-isthus `released and with the releasing of the'top barpressure on the rolls isrelieved. "After` release the latch isordinarilyheld in yitsup-swung position by thejend 2Ia of vtheplate2|.;` As the top is pressed down to place the operatingvrelease bar isactuated l swinging the end 2Iaso vas to permit the latch to swing toset position. 'I'his downward movement ofy the latch is'de'nitelyaccomplished through the extension'26 as it engages the'top of thestile.. If the latch should drop to its lower position be- .fore theresetting'operationfls started, the cam surface on the""nderside"of the'hook I4 -will swing the inner end ofthe latch upwardly so as` to permitthe clearance of p the hook I 4 past the face of the stile, the plate 2|being swung momenytarily to ypermit Athis movement.

It will be noted that this trip mechanism, except for the operatingextensions, is housed within the top bar; that it permits immediatelythe release of both ends of the top bar and consequently both ends ofthe rollers so that regardless of where the hand may be caught therelief movement is ample, In some prior structures Where the effort ismade to relieve both ends of the roll the friction surfaces sustainingthe entire pressure of the rolls have been moved by the releasingmechanism. The effort to effect a release of these dual frictionsurfaces under such pressure has been greater than is desirable andconsequently to avoid this result many release devices release but oneend of the top bar, or the roll. In the present device, the latchespresent a short and long arm at each side of the pivot of the latch. Theside, or end, of the arm sustaining the pressure load is very short ascompared to the releasing end of the arm. Consequently the frictionalpressure of the releasing surfaces between the extension 20 and 2|a isvery slight, thus making a very sensitive release, still one that isvery safe against accidental release. The sliding mounting of theoperating bars simplifies the mechanism inmany respects, particularlywhere that is carried into the top bar. It provides a simple means foran operating bar extending along the top bar and one which is operativewith equal facility from end to end so that a release is almost sure tobe effected even under panic conditions which exist when the emergencyarises and this in relation to the double release assures a completerelease with the hand caught in any part of the length of the rolls bothbecause of the relief of pressure on all l parts of the roll and becauseof the certainty with which the operator with the free hand may reachthe release mechanism. n

In the modication shown in Figs. 9 and 10 the latch mechanism within thetop bar is similar to that shown in Fig. 1. The cross bars 28h arepivotally secured at 33 to plates 34 secured on the inner sides ofoperating bars 35. The upper edges of the operating bars `are pivotallymounted on the top bar by means of pins 36 extending through the upperends of the plates 34 and ears 31 on the top bar. 'This pivotal plateextends over and along the major portion of the top bar and makes asimple support for the operating bar. o

In Figs. 11 and 12 a ymodification is shown in which an operating bar 38operates on cross bars .28c, the cross bars and latch mechanism within`have downward extensions 39 at the ends making the bar as a wholebail-shaped and the lower ends of these extensions are pivotally mountedby pins 4| between ears 40 on the side stiles. The

bars 38 are connected by links 42 which are pivotally secured to ears 43on the downward extensions 33.

In Fig. 13.;a release structure is shown which corresponds to that shownin Fig. 1 except that the latch mechanism is conned to one end of thewringer. The stile at the opposite end of the wringer has a shoulder 44which engages ashoulder 45 on the end of the top bar. With thisstructure one end of the top bar is released and as it swings upwardlyit releases the locking engagement at the opposite end. In some respectsthis is simpler and cushions Iomewht the blow of the upward movement ofthe top bar, but the relief to the pressure is not as instantaneous, noras uniform as with the double release.

What I claim as new iszl. In a wringer, the combination of a framecomprising a top bar; rolls mounted in the frame; pressure means for therolls exerting pressure from the top bar; means securing and releasingthe top bar from the frame at each end of the wringer comprising latchmembers pivoted intermediate their ends to the top bar having a shortarm sustaining from the pivot the pressure of the top bar and a long armto which the pressure is communicated through the lever action; and atrip device between the latches operating on the long arms of thelatches and comprising an operating bar actuating the device and carriedby and extending longitudinally along the top bar.

2. In a wringer, the combination of a frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exerting pressurefrom the top bar; meanssecuring and releasing the top bar from the frameat each end of the wringer comprising latch members pivoted intermediatetheir ends to the top bar having a short arm sustaining from the pivotthe pressure of the toprbar and a long arm to which the pressure iscommunicated through the lever action; and a trip device operating onthe long arms comprising a slidingly mounted operating bar actuating thedevice.

3. vIn a wringer, the combination of a frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exerting pressurefrom the ,top bar; means securing and releasing the top bar from theframe at each end of the wringer comprising latch members pivotedintermediate their ends to the top bar having a short arm sustainingfrom the pivot the pressure of the top bar and a long arm to which thepressure is communicated through the lever action; and a trip deviceoperating on the long arms comprising an operating bar actuating saiddevice and slidingly mounted on the top bar.

4. In a wringer, the combination of la frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exerting pressurefrom the top bar; means securing and releasing the top bar from theframe at each end of the wringer comprising latch members pivotedintermediate their ends to the top bar having a short arm sustaining thepressure o1' the top bar and a long arm; and a trip device operating onthe long .arms comprising an operating baractuating said device andpivotally mounted on an axis extending longitudinally of the top bar.

5. In a wringer, the combination of a frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exerting pressurefrom the top bar; means securing and releasing the top bar from theframe at each end of the wringer comprising latch members pivotedintermediate their ends to the top bar having a short arm sustaining thepressure of the top bar and a long arm; and a trip device operating onthe long arms comprising an. operating bar actuating said device andpivotally mounted on the top bar with an axis extending longitudinallyof the top bar.

6. In a wringer, the combination oi' a frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exertingpressure fromthe top bar; means securing and releasing the top bar from the frame ateach end of the wringer comprising latch members pivoted intermediatetheir ends to the top bar having a short arm sustaining the pressure ofthe top bar and a long arm; and a trip device comprising a trip barbetween the latches swingingly mounted on the top bar with an axisextending `longitudinally v of the top bar andacting on the long arms ofthe latches.

7. In a wringer, the combination ofv a frame comprising a top bar; rollsmounted in the frame;

pressure means for` the rolls' exerting pressure from the top`bar; meanssecuring and releasing the top bar at an end of the top b ar comprisingv a shoulder in the frame;'a latch pivoted on the top bar and having anarm at-'one side .of the pivot engaging said shoulder :and a longer 'annat the opposite side of the pivot extending toward the center of the topbar; and operating-means actuating the latch, said latchr releasing,when operated, the top bar and with it the pressure on the wringer.

8.A In a wringer, comprising a top bar; rolls mounted in the frame;

pressure means forv the rolls exerting pressure from the top bar; meansreleasing and securing the top bar comprising a latch pivoted to the topbar securing said top bar at one end on the frame; a trip platepivotally mounted within the topbar with its axis extending`longitudinally of the top.

bar and restraining said pivoted latch, said trip vplate being notchedto receive and engage a movable cross bar; and' an operating barextending along the top bar secured to the cross bar.

9. In a wringer, the combination of a" frame comprising a top bar;Vrolls mounted in the frame;

pressure means for the rolls exerting pressure from the top bar; meansreleasing and securing the top bar comprising a latch pivoted to the topbar securing said top bar at one end of the frame; a trip platepivotally mounted within the top bar with its axis extendinglongitudinally of the top bar and restraining said pivoted latch, said 7trip plate being notched tovreceiveand engage a movable cross bar;"an;operating bar extending along the top bar secured to the erom bar; and

springs between the trip plate and'thelsides of c 'the top baryieldingly locating the trip plate.

10. In wringer the combination of` a frame, comprising atop bar; Vrollsmounted in the frame; pressure means for the rolls exerting pressurefrom the top bar; means securing and rreleasing the top bar from theVframe at an end ofthe top bar, comprising a latch memberpivotet'iinterf mediate its ends to the top bar having a short armsustaining from the pivot the pressure of the top bar and a long arm toLwhich, the pressure v they combination. of a frame is communicated; anda trip device operating on the long arm comprising an operatingbaractuating the 'device and carried by and extending longitudinally alongthe top bar.

11. In a wringer thecombination of a frame comprising a top bar; rollsmounted in the frame; pressure means for the rolls exerting pressurefrom the top bar; means securingvand releasing 4vthe top bar from theframe at an end of the top bar, comprising a latch member pivotedintermediate its ends to the top bar having a shortV arm sustaining fromthe pivot the pressure of the top bar, anda long arm-to which thepressure is communicated; and a trip device operating on the'long armcomprising a slidinglymounte operating bar actuating said device. f

12. In a wringer, thecombinationof a frame comprising a base and sidestiles; a top bar;`

rolls mounted inthe frame; vpressure means for the rolls exertingpressure from the top bar;

means detachably securing an end of the topA bar/on the framelcomprising a release device adapted to release the top'bar to releasethe pressure on the rolls, said release device including a trip platepivotally mounted within the top bar with its axis extendinglongitudinally along the top bar; and a manually operative meansactuating thetrip plate.

13. In a wringer, the combination of a frame comprising a base andStiles; a top bar on the Stiles, said top bar being of channel form; a

` pressure means exerting pressure from the top pressure means exertingpressure from the top.

bar to the rolls; a release device releasing the pressure of thepressure means, having an operating member pivoted longitudinally withinthe top bar. and swinging cross-ways kof the top bar to effect arelease; an operating bar extending longitudinally ofthe wringer andoperable crossways of the wringer; and a connection between `theoperating bar and `the operating member, 'said connection being'slidingly vmounted -in the top bar.

' WALTER L. KAUFFMAN. 1I.

